On Saturday 20 September 2014 13:24:08 Ian Lepore wrote:
> Since it's happening only on that hardware, there's a good chance the
> problem is in the allwinner a10/a20 clock driver, not in the general
> eventtimer code. In fact, looking at the code it appears that a
> divide-by-16 is being set in the hardware, but not accounted for when
> setting the frequency of the eventtimer.
> Hmm, it should affect the timecounter too, in which case you'd see
> time-of-day advancing 16x too fast. If ntpd is running it would need to
> step the clock pretty frequently, which would show up in syslog.
I'm running FreeBSD-current on the board right now, the time is just fine.
> I don't have hardware to test on, please see if the attached patch makes
> a difference.
Well, it did: with the patch applied, the time ran about 60 times as fast as
it should have. I didn't notice any changes with load average, though: maybe
it's because I forgot to turn that sysctl setting I set before back to 0.
wbr, Maxim Filimonov
email@example.com mailing list
To unsubscribe, send any mail to "freebsd-current-unsubscr...@freebsd.org"